China's growing marine economy was valued at US$435 billion in 2008, accounting for 9.87% of the national GDP and responsible for 32.18 million jobs.
In line with the Law of the People's Republic of China on the Administration of Sea Areas (2001), all 11 coastal provinces (18,000km continental coastline) have developed and passed provincial sea area use ordinances which coordinate allocation of sea areas for various sectoral uses. Use permits providing use rights to about 10,000km2 of sea space including the use for mariculture are issued annually and generate user fees of around 1 billion RMB per year, which safeguard the legitimate right of users legally. Regular field inspections are conducted of the use permits.